Los Angeles [US], February 25 (ANI): ‘Oppenheimer’ star Robert Downey Jr. won outstanding performance by a male actor in a supporting role at the 30th Screen Actors Guild Awards, reported People. The other nominees included Sterling K. Brown (American Fiction), Willem Dafoe (Poor Things), Robert De Niro (Killers of the Flower Moon) and Ryan Gosling (Barbie). While starting his acceptance speech, Downey, 58, said, “Unlike my fellow nominees, I will never grow tired from the sound of my own voice.” He went on to rib his ‘Oppenheimer’ director Christopher Nolan and thank several people, before gi…